نتایج جستجو برای: alkyl chain length

تعداد نتایج: 594765  

Journal: :Physical chemistry chemical physics : PCCP 2015
Sourav Palchowdhury B L Bhargava

The liquid structure of aqueous solutions of five different imidazolium based gemini dicationic ionic liquids 1,n-bis(3-methylimidazolium-1-yl) alkane bromide (n being the length of the spacer alkyl chain), with propyl, pentyl, octyl, decyl and hexadecyl spacer chains has been studied using atomistic molecular dynamics simulations. While solutions with propyl and pentyl spacers are homogeneous,...

Journal: :The journal of physical chemistry. B 2005
M J Tapia H D Burrows A J M Valente S Pradhan U Scherf V M M Lobo J Pina J Seixas de Melo

The interaction has been studied in aqueous solutions between a negatively charged conjugated polyelectrolyte poly{1,4-phenylene-[9,9-bis(4-phenoxybutylsulfonate)]fluorene-2,7-diyl} copolymer (PBS-PFP) and several cationic tetraalkylammonium surfactants with different structures (alkyl chain length, counterion, or double alkyl chain), with tetramethylammonium cations and with the anionic surfac...

Journal: :European Journal of Organic Chemistry 2021

Viologens are among the most studied guests for cucurbit[8]uril (CB[8]) and their complexation is usually driven by bipyridyl core inclusion inside cavity to maximize both hydrophobic cation-dipole interactions. The presence of alkyl substituents on guest alters this mode, switching aliphatic chain in U-folded conformation. Herein, we report a thorough study influence length binding mode methyl...

Journal: :Journal of colloid and interface science 1999
Annunziata Costantino D'Errico Paduano Vitagliano

Isothermal mutual diffusion coefficients (D) have been measured for binary aqueous solutions of sodium alkylsulfonates at 25 degrees C. The diffusion coefficient values drop as the concentration of micelles in the system increases. As the length of the hydrocarbon chain increases, the observed drop in D becomes increasingly sharp and shifts to lower concentrations. When the micellization proces...

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